- 期刊
- OpenAccess
Factors in Predicting Compression of the Left Main Bronchus in Patients With Aortic Coarctation
摘要
PURPOSE. Left main bronchus (LMB) narrowing occurs more frequently in patients of coarctation spectrum, even after arch surgery, which might be preventable and correctable, so we aimed to investigate the factors predicting LMB compression after arch surgery. MATERIALS AND METHODS. We enrolled patients with coarctation and its variants undergoing routine preoperative or postoperative cardiac computed tomography (CT) and aortic arch surgery at our hospital. Several parameters were easily measured on the axial CT images, including the position of the descending aorta related to the spine at the carina and LMB branching levels, the retrosternal distance index, and the interaortic distance index. Linear regression and Pearson's correlation were used for analyzing these parameters, which were significantly correlated with the degree of LMB stenosis. RESULTS. Interaortic distance index was the most significant factor contributing to preoperative LMB stenosis (p = 0.04). Increment of the angle of the descending aorta related to the vertebral body at the carina level after surgical repair on the diseased arch had the most significant impact on reducing LMB narrowing (p = 0.006). CONCLUSION. We found some possible critical parameters that can be easily measured on axial CT images to suggest the surgical method for correction of the aortic coarctation if there is possibility of airway narrowing.
延伸閱讀
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